Research Needs in Hydraulics, Coastal Engineering and Irrigation
Last June an ASCE/NSF team gathered at Warrenton, Va., to prioritize research needs in civil engineering. They split the field into 10 subcategories, one of which is Hydraulics, Coastal...
Parrotts Ferry Bridge: Pioneer in Lightweight, Pumped Concrete
Spanning the Stanislaus River in Northern California, this bridge includes a 640-ft center span that is the world's longest span in lightweight concrete and the longest bridge...
Don't Always Put Dam in Narrowest Part of Valley
Hydraulic factors must be taken into account in dam planning and design, because the best structural design is not always the most economical. When the potential for downstream flood damage...
Value Engineering and Cement-Bentonite Cutoff Wall Save Dam Project for Arizona Indian Tribe
Value engineering showed how it was possible to save $1 million in construction costs for the San Carlos River Dam, east of Phoenix, Ariz. The proposed dam site was moved to take advantage...
Thames River Flood Barrier
For 200 years, flood tides have surged into the Thames flooding London and its vicinity. Ground subsidence in the area and the melting of the polar ice cap is combining to worsen the problem....
Recording River and Reservoir Water Depth
At the Kerr Reservoir on the Roanoke River in Virginia and North Carolina, reservoir bottom was surveyed before reservoir filling and twice thereafter, to determine rate of siltation....
Plastic Filter Fabrics Have Bright Future
There are thousands of existing installations using filter fabrics in North America and additional thousands in Europe, most built in the past 10 years. The momentum is gathering. Filter...
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